GB897279A - Corrosion resistant metal coatings - Google Patents

Corrosion resistant metal coatings

Info

Publication number
GB897279A
GB897279A GB3931/61A GB393161A GB897279A GB 897279 A GB897279 A GB 897279A GB 3931/61 A GB3931/61 A GB 3931/61A GB 393161 A GB393161 A GB 393161A GB 897279 A GB897279 A GB 897279A
Authority
GB
United Kingdom
Prior art keywords
nickel
copper
mil
corrosion resistant
resistant metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3931/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harshaw Chemical Co
Original Assignee
Harshaw Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harshaw Chemical Co filed Critical Harshaw Chemical Co
Publication of GB897279A publication Critical patent/GB897279A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/623—Porosity of the layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

897,279. Metal plating baths. HARSHAW CHEMICAL CO. Feb. 2, 1961 [Feb. 29, 1960], No. 3931/61. Class 41. Base metals Al, Zn, Fe are plated electrolytically by first a flash coat of copper or nickel, followed by a coating of nickel/copper alloy, and a final coat of nickel. There may be added a further plating of chromium. Preferred coating thicknesses are, copper 0.05 to 0.3 mil., Cu/Ni 0.3 to 1 mil., Ni 0.2 to 1 mil. The copper/nickel alloy contains 30% to 75% of nickel. The plating solution may include the di-hexyl ester of sodium sulphosuccinic acid, and sodium citrate. U.S.A. Specification 1,750,092 is referred to.
GB3931/61A 1960-02-29 1961-02-02 Corrosion resistant metal coatings Expired GB897279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US897279XA 1960-02-29 1960-02-29

Publications (1)

Publication Number Publication Date
GB897279A true GB897279A (en) 1962-05-23

Family

ID=22219303

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3931/61A Expired GB897279A (en) 1960-02-29 1961-02-02 Corrosion resistant metal coatings

Country Status (2)

Country Link
DE (1) DE1174128B (en)
GB (1) GB897279A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245283A (en) * 1990-06-21 1992-01-02 Canadian Mint Electroplated coin blanks
US5139886A (en) * 1990-06-21 1992-08-18 Royal Canadian Mint Coins coated with nickel, copper and nickel
US5151167A (en) * 1990-06-21 1992-09-29 Royal Canadian Mint Coins coated with nickel, copper and nickel and process for making such coins

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB700535A (en) * 1950-08-21 1953-12-02 Arthur Leslie Peach Improvements relating to electro-plating, more particularly of ferrous-metal surfaces
US2676917A (en) * 1952-05-15 1954-04-27 Rockwell Spring & Axle Co Method of making corrosion resistant articles having a bright surface

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2245283A (en) * 1990-06-21 1992-01-02 Canadian Mint Electroplated coin blanks
US5139886A (en) * 1990-06-21 1992-08-18 Royal Canadian Mint Coins coated with nickel, copper and nickel
US5151167A (en) * 1990-06-21 1992-09-29 Royal Canadian Mint Coins coated with nickel, copper and nickel and process for making such coins
GB2245283B (en) * 1990-06-21 1994-12-14 Canadian Mint Coins coated with nickel, copper and nickel and process for making such coins

Also Published As

Publication number Publication date
DE1174128B (en) 1964-07-16

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